Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FF-252 found under Filter Element Fluid by Deluxe Products Div Walker Mfg Co. The National Stock Number assigned to this part is 2910000157071, and the Federal Supply Class is 2910 Engine Fuel System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FF-252.